Mystery Camera (pic heavy!!)

My uncle was a professional photographer from the 1940's until his death in the early 80's. My aunt has decided that it is finally time to go through his things and figure out what he had. We spent most of the day today sifting through TONS of boxes. This is our first mystery camera... Can anyone ID this for us?

Sorry for so many images... I don't really know what might be important to ID this thing. There are no markings of any kind on it. Thanks for the help!